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2019 Annual Session Conference

Mandibular Changes by Miniplate Anchored Class III Orthopedics

May 6, 2019 2:10pm ‐ May 6, 2019 2:40pm


Class III orthopedics are commonly focused on midface protraction. There is a lot of evidence available from animal experiments, and clinical studies, that suture growth can be stimulated by external force application. Especially when these forces are applied to the maxilla by miniplate skeletal anchorage, sutures may be stretched and the midface protracted.

There is no clear evidence that condylar growth may be significantly restricted by class III orthopedics. However, remodeling processes at the ramus and gonial angle considerably affect the size and shape of the mandible. Moreover, bone resorption and apposition, also at the glenoid fossa, seem to be more sensitive to external forces than the condyles, and may explain why the forward projection of the chin is restricted by bone anchored orthopedics.

Learning Objectives:

  • Evaluate mandibular growth changes by class III orthopedics.
  • Define indications for class III orthopedics.
  • Improve the outcome of bone anchored class III orthopedics.


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